You can get them on Ebay for almost free, if you are willing to wait for them to ship from Hong Kong.
I just got a hard shell case for my Galaxy S 4G that I couldnt get anywhere else
like that. Took two weeks but it showed up and it didnt disappoint.
It was just over $2 shipping included.
Yeah, I thought that was really strange too...Even if they aren't the mic'd ones, they generally put in at least a set of head phones. Seems weird, especially given that it's a high end phone.
Monoprice probably has the best deals on hdmi cables, and better yet..they ship out of the US. Chino,CA to be more precise. You can even do local pickup if you live in the area. No more than about 5 bucks per cable.
Wait...people actually USE the included earbuds that come with phones? I must be an oddity then. I spent $249 on a good pair of Klipsch semi-noise cancelling earbuds. I also have a nice pair of Sony stereo bluetooth headsets. If you like music, then there's no way that you use the included set that comes with phones these days.